The N-photon absorption coefficient of a direct-semiconductor is calculated under the influence of a DC-field. For N>2 the system presents the same structure as the Linear Franz-Keldysh effect, oscillations for hω>Eg/2, and tunneling for hωg/2.
Tunneling assisted two-photon absorption: The Nonlinear Franz-Keldysh Effect
2005 Quantum Electronics and Laser Science Conference ; 3 ; 1411-1413
2005-01-01
440845 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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